US 2017/0284173 A1Published application

Dual Method Subsea Chemical Delivery and Pressure Boosting

AssigneeOceaneering International, Inc.

InventorsTodd Newell, Michael Cunningham, Christopher Leon, Benjamin Primm

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Abstract

A modular subsea chemical injection system, comprising a power and communications module, a power and communications umbilical terminator, a power and communications module, a fluid storage module comprising a plurality of fluid storage bays adapted to selectively receive a corresponding plurality of high and/or low flow fluid storage units, a pump module comprising a plurality of pump bays adapted to selectively receive a corresponding plurality of high fluid flow and/or low fluid flow pumps, and a fluid distribution unit in fluid communication with a pump module fluid port can be disposed on a seafloor adjacent to a well site and used to selectively provide low and/or high flow fluid delivery by use of subsea storage and pressure boosting for low flow fluid needs and low flow fluid needs.

Claims18

Dependent claims

A method to minimize the overall cost from both a manufacturing and installation perspective for modular subsea chemical injection system comprising a power and communications module to be operatively connected to an umbilical that lacks a chemical delivery conduit, a power and communications umbilical terminator to be operatively connected to the umbilical, a power and communications module operatively in communication with a power and communications umbilical terminator data communications port and an electrical power distributor operatively in communication with a power and communications umbilical terminator electrical power port, a fluid storage module operatively in communication with the subsea electronics module and the electrical power distributor and comprising a plurality of fluid storage bays adapted to selectively receive a corresponding plurality of high and/or low flow fluid storage units (42), a pump module operatively in communication with the subsea electronics module and the electrical power distributor and the fluid storage module and comprising a plurality of pump bays adapted to selectively receive a corresponding plurality of high fluid flow and/or low fluid flow pumps (52), and a fluid distribution unit in fluid communication with a pump module fluid port, the method comprising:

a. providing an umbilical that lacks a chemical delivery conduit;
b. operatively connecting the umbilical to the power and communications module and the power and communications umbilical terminator;
c. disposed the fluid storage module on a seafloor adjacent to a well site, the fluid storage module configured to selectively provide low fluid flow requirement fluids and low high fluid flow requirement fluids for the well;
and
d. selectively providing low and high flow fluid delivery by use of subsea storage and pressure boosting for low flow fluid needs and low flow fluid needs.

2 more elements

A modular subsea chemical injection system, comprising:

a. a power and communications module configured to be operatively connected to an umbilical that lacks a chemical delivery conduit;
b. a power and communications umbilical terminator configured to be operatively connected to the umbilical, the power and communications umbilical terminator comprising a data communications port and an electrical power port;
c. a power and communications module, comprising:
i. a subsea electronics module operatively in communication with the power and communications umbilical terminator data communications port;
and
ii. an electrical power distributor operatively in communication with the power and communications umbilical terminator electrical power port;
d. a fluid storage module operatively in communication with the subsea electronics module and the electrical power distributor, the fluid storage module comprising:
i. a plurality of fluid storage bays adapted to selectively receive a corresponding plurality of fluid storage units;
and
ii. a fluid storage module fluid port in fluid communication with the plurality of fluid storage bays;
e. a pump module operatively in communication with the subsea electronics module and the electrical power distributor, the pump module comprising:
i. a plurality of pump bays adapted to selectively receive a corresponding plurality of pumps, at least one pump being in fluid communication with the fluid storage module fluid port;
ii. a fluid port in fluid communication with the plurality of pump bays;
and
iii. a pump module fluid port in fluid communication with the plurality of pump bays;
and
f. a fluid distribution unit, comprising:
i. a distribution fluid port in fluid communication with the pump module fluid port;
ii. a fluid distribution unit fluid supply port in fluid communication with the distribution fluid port;
and
iii. a fluid metering valve disposed intermediate the distribution fluid port and the fluid distribution unit fluid supply port.

18 more elements

A modular subsea chemical injection system, comprising:

a. a housing;
b. a predetermined set of individual low fluid flow injector assemblies removably disposed at least partially within the housing and configured to be operatively in communication with an umbilical signal conduit, each individual low fluid flow injector assembly configured to be self-contained and isolatable from the remaining individual low fluid flow injector assemblies and to be selectively removable from the housing, each individual low fluid flow injector assembly comprising:
i. a low fluid flow injector;
ii. a storage tank in fluid communication with the low fluid flow injector;
iii. a fluid pump in fluid communication with the storage tank;
and
iv. a fluid pump controller in communication with the umbilical signal conduit and the fluid pump;
c. a predetermined set of individual high flow injector assemblies removably disposed at least partially within the housing and configured to be operatively in communication with the umbilical signal conduit, each individual high fluid flow injector assembly configured to be self-contained and isolatable from the remaining high fluid flow injectors and the predetermined set of individual low fluid flow injector assemblies, each individual high fluid flow injector assembly selectively removable from the housing, each each individual high fluid flow injector assembly comprising:
i. a high fluid flow injector;
ii. a storage tank in fluid communication with the high fluid flow injector;
iii. a high fluid flow pump in fluid communication with the storage tank and with the high fluid flow injector;
and
iv. a fluid pump controller in communication with the umbilical signal conduit and the high fluid flow pump;
and
d. a flow meter in fluid communication with the predetermined set of individual low fluid flow injectors.

12 more elements

Dependencies are inferred from the claim text.

Facts

Application: 15/475,126Filed 30 Mar 2017
Priority: 30 Mar 2016
Published: 5 Oct 2017
Term ends: Not estimatedThe source records don’t support an estimate.

Classification6 codes

E21B 41/0007
Equipment or details not covered by groups E21B15/00 - E21B40/00: for underwater installations
E21B 41/02
Equipment or details not covered by groups E21B15/00 - E21B40/00: in situ inhibition of corrosion in boreholes or wells
E21B 33/076
Having provision for introducing objects or fluids into, or removing objects from, wells: specially adapted for underwater installations
E21B 34/00
Valve arrangements for boreholes or wells

Family

Application62/315,417Us provisional application · filed 30 Mar 2016
US 9,915,129 B2Related patent
US 2017/0284173 A1This patent

From the US filing history. Foreign family members aren’t listed.

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