Applications

NATU™ & Weigh™ drilling fluids systems are widely used in most oilfields of China and some international ones. More than 5000 wells have been applied for over 20 years.

1. Junggar Basin (Xinjiang Oilfield)

2. Tarim Basin (Talimu Oilfield)

3. Tuha Basin (Tuha Oilfield)

4. Qaidam Basin (Qinghai Oilfield)

5. Shanganning Basin (Changqing Oilfield, Sinopec Huabei Oilfield)

6. Bohai Bay Basin (Dagang Oilfield, Huabei Oilfield, Shengli Oilfield)

7. Subei Basin (Jiangsu Oilfield)

8. Beibu Gulf Basin (CNOOC Zhanjiang Branch, CNPC Fushan Oilfield, Sinopec Xuwen Oilfield)

9. Sichuan Basin (Southwest Oil and Gas Field)

10. Madura Oilfield, Indonesia

11. Halfaya Oilfield, Missan Oilfield, Luke Project in Iraq

12. Zilolda oil field, Aktau oil field in Kazakhstan

13. Minkbulak Oilfield in Uzbekistan

NATU™ & Weigh™ systems have created 40 records in the industry:

(Based on the confidentiality of customer data, the actual well number is replaced by "xxx well”)

The first well in the southern margin of Junggar Basin in 20 years that was downhole accident-free and drilled to the designed target formation — Well xxx (2001)
The fastest drilling record in Tarim Oilfield: Drilling footage of 3000 meters in 6 days, 4000 meters in 9 days, 5000 meters in 14 days — xxx Well (2002)
The first safe and downhole accident-free well in the Yangtake area of the Tarim Basin in 15 years, and the minimum drilling period — xxx Well (2002)
The first downhole accident-free well in the Santai area of the eastern Junggar Basin — xxx well (2003)
The first downhole accident-free well in the Gaojiapu structure of Huabei Oilfield — Well xxx (2003)
Shengli Oilfield and Sinopec's first fishbone horizontal branch well — xxx well (2007)
The first horizontal well in Beisantai area in the east of Junggar Basin —well xxx (2008)
The carbonate reservoir strata in the Sichuan Basin was fractured, and the record for the highest bottom-hole pressure — xxx well, 207Mpa (fracture aggravating fluid, 2008)
There are many records for a single well in the Tarim Oilfield. The drilling company won a prize of 1.15 million yuan from the oilfield company — xxx well (well depth 5800m) (single bit footage is 4410m (1256-5666m), daily footage breaks 1,000 meters, well team's annual footage breaks 24000m) (2009)
The first downhole accident-free well in the Madura Oilfield in Indonesia — Well xxx (2010)
The deepest well in the exploration and development history of North China Oilfield — Well xxx (well depth 6027m, 2011)
The fastest drilling well in the offshore oilfield of Dagang Oilfield — Well xxx (2011)
The longest record of crossing the salt-gypsum formation in the piedmont areas of Tarim Oilfield — Well xxx (the thickness of the salt-gypsum layer is 3026m, 2012)
The deepest drilling record of 22" wellbore in China — xxx well (3039m, 2013)
The 17 1/2" wellbore in the piedmont areas of Tarim Oilfield has the highest daily footage record — xxx well (daily footage is 856.20m, 2013)
The deepest and fastest drilling record of 17 1/2" wellbore in China — xxx well (5541m, 90 days, 2013)
The fastest drilling record of Tabiao I wellbore structure (five-open) in the No. 2 well area of Kuche piedmont of Tarim Oilfield — Well xxx (6948m, 199 days, 2013)
Breaking the record of the minimum drilling time period of CNOOC in 2000-2500m depth horizontal wells — Well xxx (2400m, 4.38 days, 2013. The original record was 6.72 days)
Break the record of the minimum drilling time period of CNOOC in 2501-3000m depth horizontal wells — xxx well (2581m, 5 days, 2013. The original record was 6.96 days)
Break the record of the minimum drilling time period of CNOOC in 4001-4500m depth directional wells — Well xxx (well depth 4458m, vertical depth 1550m, horizontal displacement 3849m, 17.48 days, 2013. The original record was 20.41 days)
Breaking the record of the minimum drilling time period of CNOOC in 4501-5000m depth directional well — xxx well (well depth 4601m, vertical depth 1537m, horizontal displacement 4009m, 18.02 days, 2013)
Breaking the record of the minimum drilling time period of CNOOC in 4000-4500m depth horizontal wells — xxx well (well depth 4352m, vertical depth 1559m, horizontal displacement 3733m, 14.17 days, 2013)
The fastest drilling record in the Changqing Sunan Gas Field — Well xxx (straight well, 3750m deep, 800m casing, 10 days for the second opening, 2014)
The first lateral horizontal well in the history of Qinghai Oilfield — Well xxx (2014)
The fastest drilling record in the Changqing Sunan Gas Field — Well xxx (straight well, 3750m deep, 800m casing, 8.5 days for the second opening, 2015)
The maximum horizontal displacement record of Fushan Oilfield — Well xxx (2636m, 2017)
The highest temperature and deepest well in the history of Qinghai Oilfield — Well xxx (195℃, 7100m, 1.80g/cm3, 2017)
The highest temperature well in Qinghai Oilfield——well xxx (5999m, 2.50g/cm3, 210℃, 2017)
The highest temperature well in Yumen Oilfield——well xxx (6558m, 180℃, 2018)
the key well of One Belt and One Road Initiative — Minger xxx well in Uzbekistan (well depth 5918m, salt-gypsum layer, 180°C, 2.30g/cm3, breaking two records of the deepest and longest cementing section of large-size casing in the CNPC overseas market, 2018)
The record of the highest footage of single-trip drilling in the curve section of horizontal drilling in Mahu 18 block of Xinjiang Oilfield — Well xxx (single-trip drilling footage of 861m, 2018)
The deepest horizontal well of Mahu of Xinjiang Oilfield — Well xxx (well depth 6130m, horizontal section 2505.24m, 2018)
The minimum record of well construction time period in Mahu 131 of Xinjiang Oilfield — Well xxx (well construction period 46.5 days, 2018)
The highest downhole temperature in Qinghai Oilfield — well xxx (240℃, 6500m, 1.90g/cm3, 2019)
The record of the longest horizontal section of onshore extended reach wells in China — Well xxx in Changqing Oilfield (horizontal section of 4088m, well depth of 6266m, 2019)
The deepest well in the Qinghai Oilfield in the 64 years of exploration and development — Well xxx (well depth of 7310m, ultra-deep, ultra-high temperature, and ultra-high pressure, 2019)
The largest shale oil horizontal well platform in China — Changqing Oilfield xxx platform (20 horizontal wells, an average horizontal section length of 2014m, and a total of 28,000 meters of reservoirs drilled, 2019)
The highest temperature ever drilled by Western Drilling Company of CNPC — Well xxx in Qinghai Oilfield (well depth 6400m, bottom hole temperature 235℃, 2020)
The record of the longest horizontal section of onshore extended reach wells in China — Well xxx in Changqing Oilfield (horizontal section of 4118m, well depth of 7388m, 2020)
The record of the longest horizontal section of onshore extended reach wells in China and the deepest record of the well depth in Changqing Oilfield — Well xxx in Changqing Oilfield (horizontal section 4466m, well depth 8008m, 2020)