Tính toán thuỷ lực hệ thống bơm áp suất thấp thuộc hệ thống bơm sục bùn trên giàn khoan tự nâng 90m

NGHIEN CUfU - TRAO 0(!)l

TINH TOAN THOY LIJC HE TH6N G BQ M AP SUAl THAP

THUOC HE TH6NG BQM SUC BUN TREN GIAN KHOAN Ty NANG

90M NU'aC TAM DA O 03

Vii Van Khoa, Dinh Vilt Hai, Do Diic Tho

Trung tdm Mdy Ddng ldc, Vien Nghien cdu Co khi (NARIME)

TOM TAT

Tren gidn khoan tU ndng dl khoan tham dd vd khai thdc ddu khi, he thdng bdm sue biin cd vai trd

rdt quan trong Nd gdm cdc bdm dp sudt cao, bdm dp sudt thap kit hdp vdi cdc thilt biphu trd khde, thdng

thudng he thdng dUdc nhap khdu ddng bd tU nUdc ngodi. TU nam 2008 dUdc sU hd trd cua Bd Khoa hoc

Cdng nghe, Vien Nghien cdu Cd khi dd phoi hdp vdi Cdng ty Co phdn Chi tao Gidn khoan Ddu khi de

thuc hien viec nghien cdu thilt kl, chi tao vd lap ddt gidn khoan tU ndng 90m nUdc, trong do cd he thdng

bdm sue biin. Phdn tinh todn cd sd he thong bdm sue bun trong cdc thilt klcua nUdc ngodi ludn Id mdt bi

mat, khdng dUdc chuyen giao, dieu ndy gdy khd khdn cho viec nhdn rdng kit qud ve sau.

De tiing budc Idm chu tinh todn, thilt kl cd sd cua nUdc ngodi, nhdm de tdi dd thu thap, nghien

cdu, cap nhdt nhieu ngudn tdi lieu trong vd ngodi nUdc, sau do, tiln hdnh tinh todn kilm nghiem tUng

phdn thilt kl cd sd cua nUdc ngodi. Trong pham vi bdi bdo ndy, chung tdi trinh bdy vdn tdt kit qud tinh

todn thuy lUc he thong bdm dp sudt thap.

»ABSTRACT

On mobile offshore self-elevating drilling rig for surveying and exploiting petroleum, leg jetting

system (including high pressure pumps, low pressure pumps in sync other support equipments) has an

important role. Commonly, system is imported from abroad. In 2008, with the support of the Ministry

i of Science and Technology, National Research Institute of Mechanical Engineering (NARIME) in col￾I laboration with Petro Vietnam Marine Shipyard (PVMS) to perform the study, design, manufacture and

'.installation ofjackups 90m of water, including leg jetting system. Basic calculation of leg jetting system in

foreign design is always secret, not be transfered, this matter makes difficulties for developing result later.

For step by step to master foreign calculations and basic designs, authors collected, studied and updated

domestic and overseas documents, then perform test calculations some parts of foreign basic design. In

'this article, we present compactly hydraulic calculation for low pressure pump system. ^^

TAP CHf CO KHf VIET NAM • Sd 1+2 (Thdng 1+2 nam 2012)