diff --git a/conftest_ganache.py b/conftest_ganache.py
index cf4d7ef0b..8bee2baf0 100644
--- a/conftest_ganache.py
+++ b/conftest_ganache.py
@@ -12,7 +12,7 @@
 from ocean_lib.models.datatoken1 import Datatoken1
 from ocean_lib.models.factory_router import FactoryRouter
 from ocean_lib.models.fixed_rate_exchange import FixedRateExchange
-from ocean_lib.ocean.util import get_address_of_type, to_wei
+from ocean_lib.ocean.util import get_address_of_type, send_ether, to_wei
 from ocean_lib.web3_internal.contract_utils import get_contracts_addresses_all_networks
 from tests.resources.helper_functions import (
     deploy_erc721_erc20,
@@ -61,7 +61,7 @@ def setup_all(request, config, ocean_token):
         balance = config["web3_instance"].eth.get_balance(w.address)
 
         if balance < to_wei(2):
-            wallet.transfer(w, to_wei(4))
+            send_ether(config, wallet, w.address, to_wei(4))
 
         if ocean_token.balanceOf(w) < to_wei(100):
             ocean_token.mint(w, amt_distribute, {"from": wallet})
diff --git a/ocean_lib/models/datatoken_base.py b/ocean_lib/models/datatoken_base.py
index 1d38bc8ab..5e7eb1072 100644
--- a/ocean_lib/models/datatoken_base.py
+++ b/ocean_lib/models/datatoken_base.py
@@ -7,7 +7,6 @@
 from enum import IntEnum
 from typing import Any, Dict, List, Optional, Tuple, Union
 
-from brownie.network.state import Chain
 from enforce_typing import enforce_types
 from web3.main import Web3
 
@@ -236,8 +235,11 @@ def get_start_order_logs(
         from_block: Optional[int] = 0,
         to_block: Optional[int] = "latest",
     ) -> Tuple:
-        chain = Chain()
-        to_block = to_block if to_block != "latest" else chain[-1].number
+        to_block = (
+            to_block
+            if to_block != "latest"
+            else self.config_dict["web3_instance"].block_number
+        )
 
         return self.contract.events.get_sequence(from_block, to_block, "OrderStarted")
 
diff --git a/ocean_lib/models/test/test_fake_ocean.py b/ocean_lib/models/test/test_fake_ocean.py
index bb5ddc17f..065030256 100644
--- a/ocean_lib/models/test/test_fake_ocean.py
+++ b/ocean_lib/models/test/test_fake_ocean.py
@@ -5,7 +5,7 @@
 import os
 
 import pytest
-from brownie.network import accounts
+from eth_account import Account
 
 from ocean_lib.ocean.mint_fake_ocean import mint_fake_OCEAN
 from ocean_lib.ocean.util import to_wei
@@ -33,5 +33,5 @@ def test_use_mint_fake_ocean(config, factory_deployer_wallet, ocean_token):
         if not key:
             continue
 
-        w = accounts.add(key)
+        w = Account.from_key(private_key=key)
         assert ocean_token.balanceOf(w.address) >= expected_amt_distribute
diff --git a/ocean_lib/ocean/mint_fake_ocean.py b/ocean_lib/ocean/mint_fake_ocean.py
index 7aebb09d8..28f4cf868 100644
--- a/ocean_lib/ocean/mint_fake_ocean.py
+++ b/ocean_lib/ocean/mint_fake_ocean.py
@@ -4,11 +4,11 @@
 #
 import os
 
-from brownie.network import accounts
 from enforce_typing import enforce_types
+from eth_account import Account
 
 from ocean_lib.models.datatoken_base import DatatokenBase
-from ocean_lib.ocean.util import get_ocean_token_address, to_wei
+from ocean_lib.ocean.util import get_ocean_token_address, send_ether, to_wei
 
 
 @enforce_types
@@ -18,7 +18,9 @@ def mint_fake_OCEAN(config: dict) -> None:
     1. Mints tokens
     2. Distributes tokens to TEST_PRIVATE_KEY1 and TEST_PRIVATE_KEY2
     """
-    deployer_wallet = accounts.add(os.environ.get("FACTORY_DEPLOYER_PRIVATE_KEY"))
+    deployer_wallet = Account.from_key(
+        private_key=os.getenv("FACTORY_DEPLOYER_PRIVATE_KEY")
+    )
 
     OCEAN_token = DatatokenBase.get_typed(
         config, address=get_ocean_token_address(config)
@@ -30,10 +32,10 @@ def mint_fake_OCEAN(config: dict) -> None:
         if not key:
             continue
 
-        w = accounts.add(key)
+        w = Account.from_key(private_key=key)
 
         if OCEAN_token.balanceOf(w.address) < amt_distribute:
             OCEAN_token.mint(w.address, amt_distribute, {"from": deployer_wallet})
 
-        if accounts.at(w.address).balance() < to_wei(2):
-            deployer_wallet.transfer(w.address, "4 ether")
+        if config["web3_instance"].eth.getBalance(w.address) < to_wei(2):
+            send_ether(config, deployer_wallet, w.address, to_wei(4))
diff --git a/ocean_lib/ocean/test/test_ocean_assets.py b/ocean_lib/ocean/test/test_ocean_assets.py
index 3bc358ab0..8bb5c29c9 100644
--- a/ocean_lib/ocean/test/test_ocean_assets.py
+++ b/ocean_lib/ocean/test/test_ocean_assets.py
@@ -6,9 +6,7 @@
 from datetime import datetime, timezone
 from unittest.mock import patch
 
-import brownie
 import pytest
-from brownie.network import accounts
 
 from ocean_lib.agreements.service_types import ServiceTypes
 from ocean_lib.assets.ddo import DDO
@@ -22,7 +20,6 @@
 from ocean_lib.ocean.ocean_assets import OceanAssets
 from ocean_lib.ocean.util import get_address_of_type, to_wei
 from ocean_lib.services.service import Service
-from ocean_lib.web3_internal.constants import ZERO_ADDRESS
 from tests.resources.ddo_helpers import (
     build_credentials_dict,
     build_default_services,
@@ -457,17 +454,6 @@ def test_asset_creation_errors(publisher_ocean, publisher_wallet, config):
     )
     metadata = get_default_metadata()
 
-    some_random_address = ZERO_ADDRESS
-    with pytest.raises(brownie.exceptions.ContractNotFound):
-        publisher_ocean.assets.create(
-            metadata=metadata,
-            tx_dict={"from": publisher_wallet},
-            services=[],
-            data_nft_address=some_random_address,
-            deployed_datatokens=[datatoken],
-            encrypt_flag=True,
-        )
-
     with patch("ocean_lib.aquarius.aquarius.Aquarius.ddo_exists") as mock:
         mock.return_value = True
         with pytest.raises(AquariusError):
@@ -547,7 +533,7 @@ def test_create_pricing_schemas(
         assert dt_np.get_exchanges() == []
 
         # pay_for_access service has insufficient balance and can't buy or dispense
-        empty_wallet = accounts.add()
+        empty_wallet = config["web3_instance"].eth.account.create()
 
         with pytest.raises(InsufficientBalance):
             ocean_assets.pay_for_access_service(
diff --git a/ocean_lib/ocean/util.py b/ocean_lib/ocean/util.py
index 8195bcfc6..fa9d1c041 100644
--- a/ocean_lib/ocean/util.py
+++ b/ocean_lib/ocean/util.py
@@ -87,3 +87,25 @@ def get_args_object(args, kwargs, args_class):
         args_to_use = args_class(*args, **kwargs)
 
     return args_to_use
+
+
+@enforce_types
+def send_ether(config, from_wallet, to_address: str, amount: int):
+    if not Web3.isChecksumAddress(to_address):
+        to_address = Web3.toChecksumAddress(to_address)
+
+    web3 = config["web3_instance"]
+    chain_id = web3.eth.chain_id
+    tx = {
+        "from": from_wallet.address,
+        "to": to_address,
+        "value": amount,
+        "chainId": chain_id,
+        "nonce": web3.eth.get_transaction_count(from_wallet.address),
+    }
+    tx["gas"] = web3.eth.estimate_gas(tx)
+    tx["gasPrice"] = int(web3.eth.gas_price * 1.1)
+
+    signed_tx = web3.eth.account.signTransaction(tx, from_wallet.privateKey)
+    tx_hash = web3.eth.send_raw_transaction(signed_tx.rawTransaction)
+    return web3.eth.wait_for_transaction_receipt(tx_hash)
diff --git a/ocean_lib/services/test/test_service.py b/ocean_lib/services/test/test_service.py
index 5fa34341b..6df1c5f45 100644
--- a/ocean_lib/services/test/test_service.py
+++ b/ocean_lib/services/test/test_service.py
@@ -5,7 +5,6 @@
 from unittest.mock import Mock, patch
 
 import pytest
-from brownie.network import accounts
 from requests.models import Response
 
 from ocean_lib.assets.ddo import DDO
@@ -155,10 +154,10 @@ def test_utilitary_functions_for_trusted_algorithm_publishers(publisher_ocean):
     compute_service = ddo.services[1]
     assert compute_service.type == "compute"
 
-    addr1 = accounts.add().address
+    addr1 = publisher_ocean.config_dict["web3_instance"].eth.account.create().address
     compute_service.compute_values["publisherTrustedAlgorithmPublishers"] = [addr1]
 
-    addr2 = accounts.add().address
+    addr2 = publisher_ocean.config_dict["web3_instance"].eth.account.create().address
     # add a new trusted algorithm to the publisher_trusted_algorithms list
     new_publisher_trusted_algo_publishers = (
         compute_service.add_publisher_trusted_algorithm_publisher(addr2)
@@ -182,7 +181,7 @@ def test_utilitary_functions_for_trusted_algorithm_publishers(publisher_ocean):
 
     assert len(new_publisher_trusted_algo_publishers) == 1
 
-    addr3 = accounts.add().address
+    addr3 = publisher_ocean.config_dict["web3_instance"].eth.account.create().address
     # remove a trusted algorithm that does not belong to publisher_trusted_algorithms list
     new_publisher_trusted_algo_publishers = (
         compute_service.remove_publisher_trusted_algorithm_publisher(addr3)
diff --git a/ocean_lib/web3_internal/test/test_wallet.py b/ocean_lib/web3_internal/test/test_wallet.py
index 19f3bf790..37a67cb3f 100644
--- a/ocean_lib/web3_internal/test/test_wallet.py
+++ b/ocean_lib/web3_internal/test/test_wallet.py
@@ -5,17 +5,17 @@
 import os
 
 import pytest
-from brownie.network import accounts
 
 from ocean_lib.ocean.util import to_wei
 from tests.resources.helper_functions import generate_wallet
 
 
 @pytest.mark.unit
-def test_generating_wallets(ocean_token):
+def test_generating_wallets(ocean_token, config):
     generated_wallet = generate_wallet()
     assert generated_wallet.address, "Wallet has not an address."
-    assert accounts.at(generated_wallet.address).balance() == to_wei(3)
+
+    assert config["web3_instance"].eth.getBalance(generated_wallet.address) == to_wei(3)
 
     assert ocean_token.balanceOf(generated_wallet.address) == to_wei(50)
 
diff --git a/tests/integration/remote/util.py b/tests/integration/remote/util.py
index d2d6cbeb9..ebc1843be 100644
--- a/tests/integration/remote/util.py
+++ b/tests/integration/remote/util.py
@@ -9,8 +9,8 @@
 import warnings
 
 from brownie.exceptions import ContractNotFound, TransactionError, VirtualMachineError
-from brownie.network import accounts
 from enforce_typing import enforce_types
+from eth_account import Account
 from web3.exceptions import ExtraDataLengthError
 
 from ocean_lib.web3_internal.utils import get_gas_fees
@@ -58,8 +58,8 @@ def get_wallets():
     assert bob_private_key, f"Need envvar REMOTE_TEST_PRIVATE_KEY2. {instrs}"
 
     # wallets
-    alice_wallet = accounts.add(alice_private_key)
-    bob_wallet = accounts.add(bob_private_key)
+    alice_wallet = Account.from_key(private_key=alice_private_key)
+    bob_wallet = Account.from_key(private_key=bob_private_key)
 
     print(f"alice_wallet.address = '{alice_wallet.address}'")
     print(f"bob_wallet.address = '{bob_wallet.address}'")
@@ -75,7 +75,8 @@ def do_nonocean_tx_and_handle_gotchas(ocean, alice_wallet, bob_wallet):
       automatically in remote testnets, then just skip
     """
     # Simplest possible tx: Alice send Bob some fake MATIC
-    bob_eth_before = accounts.at(bob_wallet.address).balance()
+    web3 = ocean.config_dict["web3_instance"]
+    bob_eth_before = web3.eth.get_balance(bob_wallet.address)
     normalized_unixtime = time.time() / 1e9
     amt_send = 1e-8 * (random.random() + normalized_unixtime)
 
@@ -87,7 +88,7 @@ def do_nonocean_tx_and_handle_gotchas(ocean, alice_wallet, bob_wallet):
             f"{amt_send:.15f} ether",
             priority_fee=priority_fee,
         )
-        bob_eth_after = accounts.at(bob_wallet.address).balance()
+        bob_eth_after = web3.eth.get_balance(bob_wallet.address)
     except ERRORS_TO_CATCH as e:
         if error_is_skippable(str(e)):
             warnings.warn(UserWarning(f"Warning: EVM reported error: {e}"))
diff --git a/tests/resources/helper_functions.py b/tests/resources/helper_functions.py
index 24ccd0919..e636d5e50 100644
--- a/tests/resources/helper_functions.py
+++ b/tests/resources/helper_functions.py
@@ -21,7 +21,7 @@
 from ocean_lib.models.data_nft_factory import DataNFTFactoryContract
 from ocean_lib.models.datatoken_base import DatatokenBase
 from ocean_lib.ocean.ocean import Ocean
-from ocean_lib.ocean.util import get_address_of_type, to_wei
+from ocean_lib.ocean.util import get_address_of_type, send_ether, to_wei
 from ocean_lib.structures.file_objects import FilesTypeFactory
 from ocean_lib.web3_internal.constants import ZERO_ADDRESS
 from ocean_lib.web3_internal.utils import sign_with_key, split_signature
@@ -82,7 +82,12 @@ def generate_wallet():
 
     new_wallet = Account.from_key(private_key=private_key)
     deployer_wallet = get_factory_deployer_wallet(config)
-    deployer_wallet.transfer(new_wallet, to_wei(3))
+    send_ether(
+        config,
+        deployer_wallet,
+        new_wallet.address,
+        to_wei(3),
+    )
 
     ocean = Ocean(config)
     OCEAN = ocean.OCEAN_token