IP Library › Granted Patent US 10,626,710
Granted Patent B1
US 10,626,710 · App. 16/255,031 · Granted Apr 21, 2020

Downhole peristaltic pump assemblies

Inventor: Danny Javier Perez Romero (Houston, TX)
E21B43/129E21B43/121F04B43/0072F04B43/10F04B43/107F04B43/113F04B43/1133F04B43/12
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Quick Facts
Patent No.
US 10,626,710
App. No.
16/255,031
Granted
Apr 21, 2020
Kind
B1
Abstract

The disclosure herein includes a peristaltic pump assembly for pumping wellbore fluid, which peristaltic pump assembly may include: a pump; a housing having a chamber; a conduit coupled to the pump and the housing, wherein fluid may be capable of ingress into the conduit from the chamber or egress from the conduit into the chamber; and a hose having a portion disposed in the chamber, wherein the portion may be capable of being compressed by fluid disposed in the chamber.

Claims (41)

1. A peristaltic pump assembly for pumping wellbore fluid, comprising:

a pump;

a housing having a fluid port;

a conduit coupled to the pump and the housing, wherein hydraulic fluid is capable of ingress into the housing through the conduit and the fluid port;

a support disposed in the housing, wherein the support has an inner surface; and

a hose having a hose portion disposed in the housing, and the hose portion has as an outer surface adjacent the inner surface of the support, wherein the hose portion is capable of being compressed by the ingress of hydraulic fluid from the conduit into the housing; and wherein the housing the hose portion pushes against the inner surface of the support when there is ingress of hydraulic fluid from the conduit into the housing and sufficient increase of fluid pressure in the housing to push the hose portion against the inner surface of the support.

2. The peristaltic pump assembly of claim 1 , wherein the housing has an inner cylindrical surface and the support is separate from the housing and has an outer cylindrical surface that abuts against the inner cylindrical surface of the housing.

3. The peristaltic pump assembly of claim 1 , wherein the support is rigid and cylindrical and has a semi-circular cross-section.

4. The peristaltic pump assembly of claim 1 , wherein the housing has an outer surface and the support is unitary with the housing.

5. A peristaltic pump assembly for pumping wellbore fluid, comprising:

a pump;

a housing having an inner surface and a fluid port;

a conduit coupled to the pump and the housing, wherein hydraulic fluid is capable of ingress into the housing through the conduit and the fluid port; or egress from the housing through the conduit and the fluid port;

a hose having a hose portion disposed in the housing, wherein the hose portion includes a support and a collapsible section; wherein the support has an outer surface; and wherein the support pushes against the inner surface of the housing when there is ingress of hydraulic fluid from the conduit into the housing and sufficient increase of fluid pressure in the housing to push the support against the inner surface of the housing.

6. The peristaltic pump assembly of claim 5 , wherein the hose portion and the support are unitary.

7. The peristaltic pump assembly of claim 5 , wherein the support is abutted against the inner surface of the housing.

8. The peristaltic pump assembly of claim 5 , wherein the wellbore fluid is capable of flowing through the hose portion disposed in the housing.

9. The peristaltic pump assembly of claim 5 , wherein the support is disposed between the collapsible section and the housing.

10. A peristaltic pump assembly for pumping wellbore fluid, comprising:

a pump;

a housing;

a first chamber disposed in the housing;

a second chamber disposed in the housing;

a hose having a first hose portion disposed in the first chamber and a second hose portion disposed in the second chamber;

a first support disposed between the first portion of the hose and the housing, wherein the first support comprises:

a first outer cylindrical wall adjacent a first inner cylindrical wall of the housing; and

a concave portion capable of receiving the first hose portion;

a second support disposed between the second portion of the hose and the housing, wherein the second support comprises:

a second outer cylindrical wall adjacent a second inner cylindrical wall of the housing; and

a concave portion capable of receiving the second hose portion;

a first conduit coupled to the pump and the housing, the first conduit in fluid communication with first chamber; and

a second conduit coupled to the pump and the housing, the second conduit in fluid communication with the second chamber; wherein:

the first hose portion is capable of being compressed by the ingress of hydraulic fluid from the first conduit into the first chamber and the second hose portion is capable of being compressed by the ingress of hydraulic fluid from the second conduit into the second chamber; wherein the first hose portion has as an outer surface adjacent an inner surface of the first support and the second hose portion has as an outer surface adjacent an inner surface of the second support; wherein the first hose portion pushes against the inner surface of the first support when there is ingress of hydraulic fluid from the first conduit into the first chamber and sufficient increase of fluid pressure in the first chamber to push the first hose portion against the inner surface of the first support; and the second hose portion pushes against the inner surface of the second support when there is ingress of hydraulic fluid from the second conduit into the second chamber and sufficient increase of fluid pressure in the second chamber to push the second hose portion against the inner surface of the second support.

11. The peristaltic pump assembly of claim 10 , wherein fluid is capable of ingress into the first chamber from the first conduit or egress from the first chamber into the first conduit, or both.

12. The peristaltic pump assembly of claim 10 , wherein fluid is capable of ingress into the second chamber from the second conduit or egress from the second chamber into the second conduit, or both.

13. The peristaltic pump assembly of claim 10 , wherein the first portion of the hose and the first support are unitary.

14. The peristaltic pump assembly of claim 10 , wherein the second portion of the hose and the second support are unitary.

15. The peristaltic pump assembly of claim 10 , further comprising a coupler coupled to the first hose portion of the hose and the second hose portion of the hose.

16. The peristaltic pump assembly of claim 10 , wherein collapse of the first hose portion of the hose pushes wellbore fluid from the first hose portion of the hose into the second hose portion of the hose.

17. The peristaltic pump assembly of claim 10 , wherein the first hose portion of the hose is collapsible by fluid flowing from the first conduit.

18. The peristaltic pump assembly of claim 10 , wherein the second hose portion of the hose is collapsible by fluid flowing from the second conduit.

Continuity (1)
Provisional Application 62620612 · Jan 23, 2018
Cited By (2)
US 12,257,548 US 12,313,055