我們可以做到：

•簡(jiǎn)化壓裂現(xiàn)場(chǎng)

•設(shè)計(jì)更線性的流程

•減少危險(xiǎn)狀況和潛在的泄漏路徑

對(duì)客戶的好處：

•減少非生產(chǎn)時(shí)間(NPT)

•減少裝配時(shí)間

•提高壓裂現(xiàn)場(chǎng)的安全性

•降低成本，優(yōu)化生產(chǎn)

憑借創(chuàng)新的線性和大孔徑設(shè)計(jì)， Weir簡(jiǎn)易壓裂管匯系統(tǒng)的新配置大大降低了加拿大運(yùn)營(yíng)商的管匯數(shù)量，連接線路，危險(xiǎn)狀況和運(yùn)營(yíng)成本。

系統(tǒng)

傳統(tǒng)壓裂現(xiàn)場(chǎng)有許多具有傾斜流道的管線，而Weir Oil & Gas公司的簡(jiǎn)化壓裂管匯系統(tǒng)的壓力控制部件采用單一的大孔線性設(shè)計(jì)。該系統(tǒng)的組件包括Seaboard™垂直拉鎖式歧管，正在申請(qǐng)專利的Seaboard™ OSL壓裂連接和Seaboard™壓裂堆疊。

在這種配置下，所需的管道連接數(shù)量從100個(gè)減少到12個(gè)，消除了88%的潛在泄漏路徑(鉆臺(tái)設(shè)置會(huì)根據(jù)總減少量而不同)。在整個(gè)設(shè)計(jì)過(guò)程中，Weir使用標(biāo)準(zhǔn)的API-6A連接，以大限度地減少互換性問(wèn)題，具有可靠的金屬密封墊，并且很少需要在現(xiàn)場(chǎng)緊固。

該系統(tǒng)旨在提高安全性和性能，降低壓降和侵蝕，從而延長(zhǎng)設(shè)備使用壽命，減少非生產(chǎn)時(shí)間，縮短裝配時(shí)間以及材料和人工成本。

挑戰(zhàn)

Weir的簡(jiǎn)化系統(tǒng)包括Seaboard™垂直拉鎖式歧管，正在申請(qǐng)專利的Seaboard™ OSL壓裂連接以及Seaboard™壓裂堆疊，初在加拿大使用閘閥進(jìn)行測(cè)試，由以前在三天后安裝失敗的獨(dú)立操作員進(jìn)行。安裝失敗的設(shè)備是競(jìng)爭(zhēng)對(duì)手的單線拉鎖式接頭版本，在完成了十段后就必須完全拆除。 隨后在兩口油井上安裝了Weir系統(tǒng)試驗(yàn)版，每口井都有40段。開始?jí)毫褧r(shí)的平均流量為12立方米/分鐘，壓力為11,750 psi。

在操作之前需要進(jìn)行計(jì)算流體力學(xué)(CFD)分析以預(yù)測(cè)設(shè)備侵蝕情況。與類似設(shè)計(jì)的分析相比，預(yù)計(jì)Weir系統(tǒng)的磨損減少約70%，壓降降低900 psi。這些減少主要?dú)w因于直線路徑設(shè)計(jì)，這有助于使流體紊流和摩擦小化。

通過(guò)歧管的壓降(psi)

分析表明，單井壓裂期間，5”接頭管道的估算侵蝕量?jī)H為0.003”。 而在今天的條件下，整個(gè)五口油井壓裂項(xiàng)目中，7”主干線的侵蝕量只有0.004”，預(yù)估主干線上的7”十字接頭的侵蝕量?jī)H為0.039” - 都是可接受的比率。

歧管中大侵蝕量(in)

這些研究結(jié)果還預(yù)測(cè)驅(qū)動(dòng)泵所需的功率減少，預(yù)計(jì)Weir配置相比其他主要競(jìng)爭(zhēng)對(duì)手更加節(jié)能。 線路損耗的減少也有助于確保在地面測(cè)得的泵壓能更準(zhǔn)確地反映輸送到地層中的物質(zhì)。

在維修停工期間，還進(jìn)行了超聲波厚度測(cè)量(UTS)，結(jié)果表明，對(duì)任何部件的腐蝕都很小 - 約為允許極限的12%。

結(jié)果

經(jīng)過(guò)14天的運(yùn)行，Weir系統(tǒng)的配置完成了所有80個(gè)壓裂段，且管道磨損小。總的來(lái)說(shuō)，相比以前的安裝，這個(gè)系統(tǒng)持續(xù)時(shí)間多了三倍多。在提供更高性能的同時(shí)，將風(fēng)險(xiǎn)、非生產(chǎn)時(shí)間、裝配時(shí)間、管匯、連接和成本降到低，與傳統(tǒng)的管匯配置和目前的單線替代方案相比，顯示出明顯的優(yōu)勢(shì)。

Weir簡(jiǎn)化壓裂管匯系統(tǒng)適合要求苛刻的應(yīng)用程序，可用于任何油田，可根據(jù)任何情況進(jìn)行定制。設(shè)備可供出租，在每項(xiàng)工作完成后進(jìn)行全面檢查和重新認(rèn)證。

關(guān)于鼎恒石油

四川鼎恒石油是Weir SPM的授權(quán)代理商，若需要購(gòu)買SPM產(chǎn)品或需要了解產(chǎn)品詳細(xì)參數(shù)及相關(guān)疑問(wèn)，可直接進(jìn)入鼎恒石油官網(wǎng)咨詢網(wǎng)站客服或者撥打銷售熱線18000522697。

四川鼎恒石油機(jī)械設(shè)備有限公司(http://www.cx-shenghe.com)是一家擁有進(jìn)出口經(jīng)營(yíng)權(quán)，長(zhǎng)期從事國(guó)內(nèi)外石油天然氣設(shè)備和配件的專業(yè)銷售公司。鼎恒石油公司總部設(shè)在四川成都，在加拿大大不列顛哥倫比亞省成立了分公司。我公司與多家世界知名制造廠商建立了緊密的合作關(guān)系。 

注：該文章由鼎恒石油編譯，轉(zhuǎn)發(fā)須注明出處。

附英文原文：

Simplifying the Frac Site

With an innovative linear, large-bore design, a recent configuration of Weir’s Simplified Frac Iron System dramatically reduced iron, connections, hazards, and costs for an operator in Canada.

WHAT WE ARE DOING

• Simplifying the frac site

• Engineering a more linear flow

• Eliminating hazards and potential leak paths

BENEFITS TO YOU

• Reduce non-productive time(NPT)

• Reduce rig-up time

• Improve safety at the frac site

• Lower costs and optimize production

The System

While traditional frac sites feature numerous iron strings with angled flow paths, the pressure control components of the Weir Oil & Gas’ Simplified Frac Iron System feature a single, largebore linear design. Components of this system include the Seaboard™ Vertical Zipper Manifold, the patent-pending Seaboard™ One Straight Line (OSL) Frac Connection, and the Seaboard™ Frac Stack.

In this configuration, the number of required pipe connections is reduced from 100 to 12, eliminating the potential for leak paths by 88 percent (rig site setup will vary total reduction). Throughout the design, Weir uses standard API-6A connections, which minimize interchangeability issues, feature a reliable metal-seal gasket, and rarely require tightening in the field.

Collectively, this system is designed to improve safety and performance, minimize pressure-drop and erosion–thus extending equipment life–and reduce non-productive time, rig-up time, and material and labor costs.

The Challenge

Weir’s simplified system that included a configuration of the Seaboard™ Vertical Zipper Manifold, the patent-pending Seaboard™ One Straight Line (OSL) Frac Connection, and the Seaboard™ Frac Stack using gate valves was initially put to the test in Canada by an independent operator whose previous installation had failed after three days. The equipment, a competitor’s version of a single line zipper tie-in, had completed only ten stages and had to be completely dismantled. A trial version of Weir’s system was subsequently installed on two wells, at 40 stages per well. Fracking commenced, averaging a flow rate of 12 m3/minute at 11,750 psi.

Prior to operation, a Computational Fluid Dynamics (CFD) analysis was conducted to predict equipment erosion. When compared to analyses of similar designs, Weir’s system estimated approximately 70 percent less wear and 900 psi less pressure drop. The reduction was attributed to the straight-path design, which helped to minimize fluid turbulence and friction.

The analysis showed that the estimated erosion of the 5” tie-in pipeline would only be 0.003” during the single-well frac. The 7” trunk line erosion would only be 0.004” throughout the entire five-well frac program, and the 7” cross in the trunk line was estimated to erode by a mere 0.039”–all acceptable rates in today’s conditions.

These findings also predicted a reduction in the horsepower required to drive the pumps, giving the Weir configuration an estimated power savings over leading competitors. The reduction in line losses would also help ensure that pump pressure measured at the surface would more accurately reflect what was delivered into the formation.

During maintenance shutdowns, an Ultrasonic Thickness Survey (UTS) was also conducted, indicating very little erosion on any of the components–approximately 12 percent of allowable limits.

The Result

After 14 days, this configuration of Weir’s system completed all 80 frac stages with minimal pipe wear. Overall, the system lasted more than three times longer than the previous installation. While delivering greater performance, it minimized risks, non-productive time, rig-up time, iron, connections, and costs—demonstrating a clear advantage over traditional iron configurations and current single-line alternatives.

Fit-for-purpose and ideal for demanding applications, Weir’s Simplified Frac Iron System can be used for any well and tailored to any condition. Equipment is available for rent, fully inspected and re-certified after every job.